Joint for conduits and the like.



L. BILL. JOINT POB. GONDUITSANI') THE LIKE.l

. AAAAAAAAAAAAAAAAA UG. 999999 o. @16, l 24 Batented Jam-30, 1912.

IlE

Il Y |i' llllllllllllllllll l* runny yn" i .JOINT FOR CONDUITS AND THE Specicatlon of Letters Patent.

ratented'aan. 3o, 1912.

v Application led August 2g, 1910. -Serial'Na 579,378. 'i f To @ZZ 'whom may comem:

i Be it known that I, LoN B nmi, a citizen of the French Republic, residing at Nogentsur-Marne', Department of the Seine, in

5 France, have invented certain new and use= ful Improvements in and- Relating to Joints for Conduits and the Like, of which the fol- .lowing is a specificationt vThe present invention relates to pipe A10'joints, and more especiallyto pipe joints of the socket type.

It comprehends an V'improved method of forming such joints, and, also, an improved sealingcollar for use Vin carrying out that method. In the accompanying drawing, Figures 1 and '2 are fragment-al longitudinal sectional views of a socket joint embodying the invention. These figures show the sealing collar in its 'simplest form, and also s bowthe filling devices employed in conjunction therewith. Fig. 3 is a transversesectional" View of a modified lform of collar. Figs. 4 and 5 are similar views of that form of lining collar shown in Fig. 5. being aslight modification of that shown in Fig. 4. Figs. 6 to-9 are sectional views of further modifications of the invention.. I y Referring to said drawing, and more particularly to Figs. 1 to 5,1-and 2 indicate, in a general manner, the two pipes to becou-I pled together, and 4 ai stop which, in theV present instance, is provided upon the inner pipe 1 and is shown as in the form of a bead. Between said pipes there is forced a malleable metal collar 3, which is U-shapedA in cross-section, the space 5 between its walls .being designed to receive Vmalleable metal filling devices 7, here shown as in theformv of rings. Thesel rings present `the same 'curvature as the collar, and they -are driven in the space`5 and upset, so'as to expand l said walls and press them against the walls of the pipes, to the form of which they adapt themselves perfectly. lhe.oi 1te'r; sur .faces f the collar Walls may, Yif desired', be'

providedy with rubber rings 6, .which f are 'j fitted in grobves formed therein, and also,

with a-cap or cover 8 of rubber or other suitable material, as depictedin 'F ig. 3, this cap or cover being employed in .cases where c it is 'advisable to prevent the liquid or gas Vconveyed through the pipes from coming into contact with the metal of the joint.

' In order to strengthenthe'jointfand` to sealing collar which .is preferably used, the

i quent displacement of the joint. `T tlius Yformed may be provided with elastic ,in sratrnsrairnnr 'orrrcnE enable it toresist very hi hpressure,l a sup# plemental collar is provided which is itted`- in the space 5 and constitutes a lining for -the inner surfaces of the walls of the main Vor sealing collar 3.'

f This lining collar 1s' also of U-sect-ion and its walls are provided y with lsaw teeth. In the form depicted in Fig. 4, the ends of the walls o fthe lining collar 9 are edged with hard metal'rings .10, upon which the teeth llujar'e 1 formed, while in the modified form shown'in Figa 5 theA lining collar 12 is constructed of very* hard but elast-ic metal andv its teeth' 13 are formed integral therewith.

To expand the thuslined sealing collar,

it is'lledas above descri ed, after'which operation wedges of hard metal-are driveninto the filling material so as to separate its `walls and cause thesaw teeth to penetrate the pipe walls, but the same effect may be obtained by first separating the collar Walls by means oa punch and then driving the `filling rings into the\space between said walls.

While the preferred orm and application of the invention are a hereinabove stated,

the sealing collar may be used in connecf vtion with joints other than those of the socket type with but. slight modification.V

In such instances, there may be employed a collar 14, Figs. 6 and 7 provided with a groove .15 at each side and with an inner projectionv 16, against which latter the two pipes bear. A metal m'u 17 is-then placed on the collar and', by means of a caulking chisel or other suitable tool, the filling .ina-

terialfis introduced into said grooves so'as to expand the walls thereof. Also, the collar may be turned partly over the muii' and 1 partly overfthe y'packed filling-material, as

illustrated in Fig. 7, to prevent anp subsef e joint Washers 18, which "rest directly upon the pipes, (Fig. 6), or 'with elastic or soft metal washers 19' thatrest upon headings .20 on said pipe"s,'(Fi`g.7).

. 'In the constructlon shown in Fig. -v 8, the i co'llar 22 is provided with a small lflange 23 which serves to prevent'its displacementwhen the space between. its lwalls is being fined, and in Fig. .9 the Collar 26 is Shown i as provided with similar flanges 25 and 26 i at lts opposite sides which loffer greatresistance to-` any .longitudinal stresses, that may be exerted. v 1

I claim:

1. The method of forming socket pipe joints which consists in forcing a cold malleable metal collar of U-section having the outer surfaces of its walls provided with saw teeth into the socket formed between the confrontin I and subsequent y forcing a malleable metal filling ring into the space between the walls of said collar, to expand said .walls and cause the said teeth to penetrate the adjacent socket walls.

2. The `method of forming socket pipe joints which consists in forcing a cold malleable metal 'collar of U-section having the outer surfaces vof its walls provided with washers of elastic material and with saw teeth into the socket formed between the confronting ends of the pipe sections, and

subsequently forcing a malleable metal cause the said teeth to penetrate the adjacent socket walls.

3. As a new article of manufacture, a'

malleable metal collar of U-section for sealends of the pipe sections,l

miami ing pipe joints having the outer surfaces of its walls provided with saw teeth, the s ace between the walls of said collar being a apted to permanently receive a filler, for expanding said walls, to cause said teeth to penetrate the walls of the pipe sections to be connected.

4. As a new article of manufacture, a malleable metal collar of U-section for sealing pipe joints provided with a lining co1- lar of harder metal having saw teeth connected therewithwhich are arranged externally of the first-named collar, the space between the walls of said first-named collar being adapted to 'permanently receive a ller for expanding the same and forcing said teeth to penetrate the walls of the pipe sections to be connected.

lin testimony whereof ll" have hereunto set my hand in presence of two subscribing witnesses. v

. l Laon Birma.

Witnesses: v

- H. (1Com,

Gnomes Bowie. 

